Home / 758,924.80-1,139,699.40-404,630.80

Finding the Fourth Proportional to 758,924.80, 1,139,699.40 and 404,630.80

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Solution

The fourth proportional to 758,924.80, 1,139,699.40 and 404,630.80 is: 607,645.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,924.80 : 1,139,699.40 = 404,630.80 : x
  2. Step 2: Convert to fraction form
    758,924.80/1,139,699.40 = 404,630.80/x
  3. Step 3: Cross multiply
    758,924.80x = 1,139,699.40 × 404,630.80
  4. Step 4: Simplify right side
    758,924.80x = 461,157,479,981.52
  5. Step 5: Solve for x
    x = 461,157,479,981.52/758,924.80
  6. Step 6: Final answer
    x = 607,645.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.